1 files changed, 9 insertions, 0 deletions
diff --git a/sn7400.v b/sn7400.v
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--- /dev/null
+++ b/sn7400.v
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+`timescale 1ns/1ps
+module sn7400
+  #(parameter tPLH = 0, tPHL = 0)
+  (input [3:0]	A,
+   input [3:0]	B,
+   output [3:0]	Y);
+
+   assign #(tPLH, tPHL) Y = ~(A & B);
+endmodule